Radiology, Vol 186, 717-722, Copyright © 1993 by Radiological Society of North America
Balloon dilation of ureteral strictures after renal transplantation
JC Kim, MP Banner, P Ramchandani, RA Grossman and HM Pollack
Department of Radiology, University of Pennsylvania School of Medicine and Hospital, Philadelphia 19104.
Ten ureteral strictures that developed in nine patients after renal
transplantation were managed with balloon catheter dilation and placement
of a ureteral stent. Four strictures were successfully dilated (40%), with
a follow-up of 15-42 months (mean, 29 months). Comparison of these cases
with the six cases of unsuccessfully dilated strictures failed to show any
substantial differences between the groups with respect to demographics,
stricture characteristics, or radiologic management techniques. However,
strictures that developed at the ureteroneocystostomy site responded
favorably more often (three of four strictures) to balloon catheter
dilation than did strictures in other locations. The authors' experience is
not as favorable as that of others who have managed renal
transplant-related ureteral strictures in a similar manner. Nonetheless,
their experience reinforces the efficacy of balloon catheter dilation of
ureteral strictures that develop after renal transplantation as an
effective alternative to surgical revision in a substantial percentage of
patients.
